Fireplace



June l 1926.

W. HALLBERG FIREPLACE Filed May 2, 1925 2 Sheets-Sme*v l INVENTOR W/LL/AM #ALLEE/e6 W. HALLBERG June 1 1926.

FIREPLACE Filed May 2, 19254 2 sheets-sheet 2 NVENToR. W/LL/AM HALLE/e A TT ORNEYS.

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Patented .lune l, 1926.

PATENT OFFICE.

WTLLIAM HALLBEBG, QF LOS ANGELES, CALIFORNIA.

FIREPLAGE.

Application mea' may c, icas. serial No. 27,608.

My invention relates to fireplaces, and the purpose of my invention is the provision of a fireplace by which the effective and economical heating of rooms can be obtained and in such manner that air both from the room and outside atmosphere is continuously circ-ulated through the fireplace so as to be heated during transit and nally discharged into the room, the circulation of air being such that it is continuously supplied to the iirebox in quantities sufficient to prorents of air from the fireplace into the firebox so that part ot the air operates to promote perfect combustion while the remainder of the air is discharged into the room. Iwill describe only vone form o fireplace embodying my invention, and will `then point out the novel features thereof in claims.

In the accompanying drawings- Figure 1 is a view showing in front elevation and partly in section one form'of fireplace embodying my invention.

Figure 2 is a vertical sectional view taken on the line 2-2 ot Figure 1.V

Figure 3 is a horizontal sectional view taken on the line 3-3 of Figure 2. Figure et is a detail perspective view of intermediate and base sections ofthe firebox emhodiedin the fireplace shown in the preceding views. Figure 5 is a the top section ofthe irebox..

Figure 6 is a sectional .'ew taken on the line 6--6 of Figure 2.

Similar reference characters refer to simi,- lar parts in each of the several views.

Referring specifically to the drawings, my vinvention in' its present embodiment comprisesl a fireplace constructed of brick or other suitable material includingA a base 15 of rectangular form as shown in Figure 3, and'from the rear of which a rear wall 16 extends upwardly to form the rear of a chimney designated at 17. A front wall 18 extendsupwardly from the front side ofthe base, and 1n advance of the front wall of the invention to I the room.

detail perspective viewl of be. superimposed thereon chimney 17, is a horizontal wall 19 connecting the two to provide a mantel withinthe room. An incllned 4wall 20 constitutes the bottom of the chimney 17 and is provided with an opening 21through which gases from the fireplace are discharged into the chimney. v f

The front wall 18 is made up of a lowel` section 18a and an upper section 1'8", the sections being supported on transverse angle irons 22 secured at their ends in the `Side walls of the fireplace and supporting the wall sections inspaced relation to provide an opening 23. The top or horizontal wall 19 is likewise provided with a relatively small opening 24 spanned by a screen 25 so as to provide a register through which heated air from the fireplace is discharged into Within vthe fireplace ifs-arranged a irebox constructed ot metal or other suitable material and in the present instance embodying three sections capable ot being readily assembled and disassembled to facilitate manufacture and application thereof to the tireplace. As shown inv Figures 4 and 5 the irebox com rises a flat base 'section 26,. a three sided mtermediate section 27 supported on the basesection, and a top section 28 supported on the intermediate section and having its forward vertical edges of irreguposition withinthe fireplace, and to provide` substantially. air tight joints between the sections.' f

"In, the a plied""'pos1tion or'l the--rebox within the replace as illustrate 2, the base sectionA 26 is support ward edge upon the lower front' tion 18, and at its lower edge upon an angle bar 30 secured within and extending transversely of the fire lace. With the base section supported in t 's manner, it will be clear that'the intermediate and to sections can' vertical edges lying conti ous to the `front wall 18 of the `fire ace. n this position the rebox vis space from the rear andfbottom walls of the-chimney so as to provide therebetween, an air-duct 31 which is 1n communication withfthejopening 24 of the boris,

:wit A l their front ssj , lar form for a purpose which will be de-l i 'ion los

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zontal wall -19. The sides of the firebox are maintained in spaced relation to the sides of thefireplace by means of` vertical L-shaped partitions 32 which extend from the inner sides of the fireplace as clearly shown in Figures 2 and 3 and in spaced relation to the front wall 18 so as to provide therebetween vertical ducts 33 closed at their upper ends but open at their lower ends so that air is free to pass upwardly of the ducts and into the firebox through openings 34 formed by the association of the irregular vertical edges of the fii'ebox-sections27 and 28 with the front wall 18. The lower ends of the ducts 33 are in communication with a chamber 35 below the fireplace, and to which chamber air is supplied through a horizontal air duct 36 formed beneath the floor of the room by eX- tending a partition 37 across the lower edges of a plurality of joists 38 of the floor. from the room in which the fireplace is lo; cated is supplied to the air duct 36 through a floor register 39 as clearly shown in Figure 2.

As shown in Figures 2 and 5, the upper firebox section 28 is formed with a collar 40 to whiclris secured the lower end of a pipe 41, the latter being inclined upwardly across the air duct 31 and having its upper ends secured within the opening 21 thus placing the top of the fireboX in communication with the chimney. This pipe 41 is provided with a damper 42 operable by a rod 43 extending through the front wall 18, the damper controlling the passage of air and products of combustion through the pipe, and into the chimney as will be understood. The pipe 41 is constructed to partly bridge or block the air duct. 31, and is provided with transverse pipe sections 44 as. clearly shown in Figure 6 through which the air traversing the duct 31 can pass upwardly for final discharge through the opening 21. ln forcing the air to traverse the pipe sections 44, it will he clear that the heated air and products-of combustion traversing the pipe 41 will operate to heat the pipe sections 44 and thus heat the air traversing the sections so that the air as finally discharged into the room through the opening 21 is heated..

As shown in Figure 2, the base and rear wall of the fireplace is constructed to accom.- modate an l.shaped pipe 45, the vertical portion of which is in communication with the bottom of the firebozi:y through an opening 46 and a damper 47, disposed within the opening to control the influx of air into the firebox or the dumping of ashes therefrom. rlhe horizontal portion of the pipe extends to the outer side of the building and is provided with a door 48 so that in the event that wood or coal are being burnt in the firebox the ashes therefrom can be discharged into the pipe and removed therefrom Air b item2? through the door 48. A branch pipe 49 extends through the rear wall of the fireplace and constitutes an air inlet through which fresh air can be supplied to the bottom of the firebox to promote combustion, as will be understood.

In practice, the source of heat (not shown) in thefirebox effects -a reduction in the temperature of the surrounding air which operates to generate currents of air which traverses the several ducts in the ,following manner:

As indicated by the arrows in Figure 2, fresh air from atmosphere enters the bottom of the rebox through the branch pipe 49, the passage of air into the box being controlled by the damper 47. A current of air also enters the air duct 36 through the register 39 passing into the chamber 35 and then upwardly to the sides and back of the fireox. A portion of this air enters the air ducts 33 passing into the rebox with a portion thereof mingling with the products of combustion from the source of heat to promote combustion in a manner to prevent a draft of air being created inwardly of the firebox lthrough the opening 23. The remainder of the air is free to pass through the opening 23v into the room. The air traversing the sides of thel firebox and the duct 31 is heated during transit and further heated by passing through the i e sections 44 from whence it is finally disc arged through the openin 24 into the room.

By t is operation, it will be seen that a constant circulation of air is eected from the room downwardly through the air duct in the floor, upwardly around the firebox and outwardly from the mantel back into the room, this current of air being repeatedly heated so as to eHect a thorough and uniform heating of the room. As previously mentioned the outdraft from the firebox through the openings in the side walls thereof prevents an indraft into the firebox thus permitting a constant circulation of air through the fireplace. Thus the products of combustion emanating4 from the source of heat in the firebox are forced to pass upwardly through the pipe 41 and into the chimney 17. Y

Although lly have herein shown and described only one form of fireplace embodying my invention, it is to be understood that various changes and modifications may be made therein without departing from the spirit of the invention and the spirit and scope of the appended claims.

Vilhat l claim is:

1. ln combination, a fireplace having air inlets at the bottom and air discharges at, the top and front thereof, l.shaped partitions extending inwardly from the sides thereof and in spaced relation to the front thereof to provide air ducts having open llO lower ends, a chimney, a firebox in the fireplace havingbpenings in the sides thereof registering wlth said air ducts, said fireboxbelng spaced from the inner walls of the fireplace to provide air ducts at the sides, bottom and back thereof, a pipe connecting the firebox and chimney in a manner tofbrid the air ducts at the back and sides of the firebox, pipe sections extending transversely through the pipe to provide communication between the air discharge at the to of the fireplace and the side and back alr ducts,

and dampers controlling the assage of air throuvh said pipes and air in ets. Y

2.' combination as embodied in claim 1 wherein a fioor air duct is in communication with one of the air inlets and in communication with the top air discharge.

3. In combination, a fireplace having air inlets at the bottom and air discharges at the top and front thereof, L-shaped partitions extending inwardly from the sides thereof and in s aced relation to the front thereof to rovi e air ducts having open lower lends, andafirebox in the fireplace having openings in the sides thereof registering with said air ducts in the manner and for the purpose described. t,

4. In combination, a fireplace having a sectional front wall, transverse bars for supporting the sections of the front wall to provide openings at the front of the fireplace, air discharges at the top of the fireplace, a firebox in the fireplace so as to be in communication with one of said openings, said firebox having irregular vertical edges (3o-operating. with the front wall of the fireplace to form openings, and means in the fireplace for directing air through said openings into the firebox,

.5. In combination, afireplace, a rebox in the fireplace, and means by which currents of air are directed inwardly of the firebox from the fireplace to prevent an indraft of air inwardly of the firebox from the front of the fireplace.

6. In combination, a fire lace having air inlets at the bottom and air outlets at the top, and a fire box in the fireplace having openings arranged' to deliver currents of air into and forwardl of the fireplace.

WILL AM HALLBERG. 

